131506610 has 8 divisors (see below), whose sum is σ = 236711916. Its totient is φ = 52602640.

The previous prime is 131506603. The next prime is 131506651. The reversal of 131506610 is 16605131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125596849 + 5909761 = 11207^2 + 2431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6575321 + ... + 6575340.

Almost surely, 2^131506610 is an apocalyptic number.

131506610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131506610 is a deficient number, since it is larger than the sum of its proper divisors (105205306).

131506610 is a wasteful number, since it uses less digits than its factorization.

131506610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150668.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 131506610 is about 11467.6331472541. The cubic root of 131506610 is about 508.5291595842.

The spelling of 131506610 in words is "one hundred thirty-one million, five hundred six thousand, six hundred ten".